When the Byzas, Megarians asked their prophets where to set up their “home”, their prophets said, “against the land of the blinds”. On exploration of the Bosphorus, the Megarians were fascinated by the uninhabited beauty of the landscape and as the land across the water was already occupied by the Khalkhedonians, they thought the one who leaves such beauty uninhabited and lives against it must be blind and obeyed their prophets’ foresight with pleasure. A century later than the establishment Byzantion was occupied by Persians in 513 B.C. and then by Athens and Spartans. In a period of conflict between Athens and Spartans, Macedonian Kingdom under King Philippos II’s reign had become powerful day after day. Although this expansive Kingdom captured Byzantion in 340 B.C., was unable to occupy. After Greece was dominated by Alexander who took over King Philippos II, Persians were also attacked by him and Alexander got hold of Anatolia defeating the Persians in 334 B.C. Following the death of Alexander, the city was governed by his victorious commanders until it was tremendously destroyed by the Galatian attacks after 278 B.C.

In that period of fluctuation, Byzantion eventually was dominated by Romans who were about to establish a global Empire after the defeat of Macedonians in 146 B.C., and the city was governed under the force of the Roman State of Thrace. Roman Emperor Septimus Severus ordered total destruction of the Byzantion and the massacre of the Byzantines who were with his rival Roman General Niger.

As Septimus Severus would not easily give away such a strategic city, later had it rebuilt and changed the name of the city as Antoneinia. The walls surrounding the city were expanded, the square in front of St. Sophia Church was reorganized and the road was connected from there to Cemberlitas. In 203 B.C., construction of a Hippodrome was started and an amphitheater was built downhill Acropolis nearby Halic. Following the defeat of his rival Licinius in 324 A.D, Emperor Constantinus (306-337) started the foundation and development of the city. Initially, the Roman Capital was thought to be settled in Troy in memory of the mythological Trojan Aeneas however then Byzantion was preferred. The surrounding walls built by Severus were rebuilt further away in 2.8 km west. The “Forums” (Squares) were connected to each other by roads within the walls. Christian Constantinus had old Pagan temples repaired besides having built the magnificent St. Sophia Church.

The restored city was named Nea Rome and declared to be Capital in 11th May 330 with a tremendous ceremony. Following the death of Constantinus, the name of the city was converted into Constantinopolis. Later on, the name started to be pronounced as Stinpolis, Stinpol, Estanbul, and eventually Istanbul. The competition between Constantinopolis as the center of Christianity and Rome as the center of Paganism outraged and Constantinopolis became outstanding for Christianity. Theodosius I as a dedicated Orthodox, suppressed the Pagans and in that period of turbulence divided the Empire into two in 395 A.D.

That discrimination ended up with Western Rome, the capital of which was Rome, and Eastern Rome, the capital of which was Constantinopolis. Getting advantage of this division, Western Goths forced the walls of Constantinopolis. Eastern Roman Empire solved the problem by appointing Alarik the king of Goths as General Commander of the Balkans while Rome, the Capital of the Western Roman Empire, was destroyed to a great extent as they failed to perform such a policy (400 A.D). Having survived the occupation of Goths, the Capital of Eastern Roman Empire, Constantinopolis, faced attacks from Huns (440) and could survive only after the dispersion of the Hun Empire following the death of Emperor Attila. During this period under stress, the economy failed in the Eastern Roman Empire, there arouse deep conflicts between Ariusism and Orthodoxes and even the efforts of Theodosius II were not enough to solve the problem. This was when the Halic and Marmara walls were built inside the outer surrounding ones. So, the city was expanded two-fifth of its size. After the death of Theodosius, subsequent Emperor Marcianus in 451 invited the Kadikoy Council to get together, with this unity, the Archbishop of Constantinopolis was respected in equal highness of the Pope. Therefore, the Church also was divided into two as East and West. Leon l, who took over Marcianus’ reign, invited Isaurians to get rid of Aspar the leader of the German Community in the Capital and Isaurians having easily dominated the city, shortly took over the government on the name of their commander Zenon and ruled for 15 years. In the meantime, the Western Roman Empire has swept away from the stage of history in 476 as a result of German attacks. Anastasios I, who took over after Zenon, while trying to balance the economy, caused conflicts among religious communities as a result of his discriminative attitude towards religion. Trying to protect his crown by extensive privileges given to the Orthodox community, Justinianus I (527-565), nephew of Justinius, who took over right after him, reorganized the army and went for crusades to enlarge the borders with respect to the former extent, therefore on his victory over the Vandals and Berberis in Africa, Goths in Spain, rearranged the contemporary map of the region as the Mediterranean Sea to be a lake for Eastern Roman Empire.

However, he received disregard for his performance because of his suppressive regime. Orthodoxes, The Blues who were the representatives of land-owners and The Greens who were the representatives of tradesmen and craftsmen gathered in Hippodrome and rebelled against Justinianus. During this rebellion dated 532 and named as Nika Rebellion, St. Sophia previously restored by Theodosius II as it had been destroyed before in a rebellion in 404, was burnt. This rebellion spread throughout the city and a lot of blood was shed.

Following Justinianus, during Justinius II, Tiberius I, and Mavrikios reigns, Constantinopolis gained more importance each day being a milestone on the Silkroad of China-India trade route. The city resisted the attacks from eastern Sasanians and those attacks continued until 591. In Phokas Period (602-610), religious and political turbulence started again until Herakleios who took over in 610 changed the policy and shared the Anatolian land among the military executions called Thema. Instead of paid soldiers, with the army gathered from Syria, Palestine, Egypt, and Armenia, he regained the land once lost. The state which is widely known as Byzance instead Eastern Roman Empire had to bear the Arab attacks in 7th century; in 673-677 Arabs kept the city under conquest. Justinianus II, who took over in 685, performed a policy based mainly on peasants and therefore, the aristocrats united with the Blues in 695 dethroned Justinianus’II and Leontios became the Emperor. This was followed by Tiberius’ counter rebellion and dethroned Justinianus was recrowned in 705. Emperor Justinianus continue to lead the reign until 711 when he was killed in a rebellion. While the Arab attacks were continuing, Theodosios III became the Emperor. However, his reign also didn’t last long and in 717 Leo III was throned. Leo III supported the iconoclastic attitude and had the busts of previous emperors broken. The turbulence was persistent during the reign of his son, Constantinos V. The city endured Arab and Bulgarian attacks and had hard times during this period until the taxes paid to them were increased and trouble was suppressed. From 802 till 811, Emperor Nikephoros l went over Bulgaria several times to get rid of the risk, however, he was killed there. Although Arabs and Russians recaptured the city in 821 during the Michael II period, they were unable to occupy it.

When Basileios, who was a Balkan Slavian, converted to Christianism and making his life as a horsebreaker in Constantinopolis, had the emperor executed and announced himself as the Emperor of the Eastern Roman Empire, his Macedonian reign took over the Byzantine throne in 867-1056. In 963, Commander Nikephoros Phokas II took over the Empire from Romanos II. Commander Nikephoros Phokas II went eastwards and occupied Kilikia, Cyprus, and Antioch. Then expanded up to Donau via Bulgaria and was killed when he returned to Constantinopolis in 969. After Nikephoros Phokas II, Ioannes (Tsimiskes) I took over. While the struggle between aristocracy and peasants were going on, the state was under pressure with attacks from Seljuks on the east, Normans on the west, Petchenegues and Koumans on the north.

In a period when Roman and Byzantine churches were gradually alienated towards each other, the public throned Romanos Diogenes in 1068. Diogenes went over Seljuks on the east to get rid of their challenge however on 26th August 1071 was defeated in Manzikert and submitted to Alparslan. When the Emperor returned to Constantinopolis being set free by the Turks, he was killed after his eyes were removed. Taking over in 1081, Emperor Alexios started the reign of the Comnenos dynasty. As a result of the Turkish threat on the east, Byzance supported crusades in the name of Christianity. In 1096, the first crusaders arrived Constantinopolis having destroyed Hungary and the Balkans, the Emperor directed this army to Anatolia. However, those first crusaders were tremendously defeated by Seljuks. The same year, the second crusaders started off and captured Antioch in 1098 and Jerusalem in 1099. Independent crusaders and the Byzance had conflicts as the crusaders would torture the common people and destroy wherever they stepped on. That was a reason for rebellion against them within the Empire and Andronikos became the Emperor in 1183 following the rebellion. The outstanding performance of the Emperor was to put pressure on the aristocracy saying “Give up injustice or your life”. That motto widely received respect from the public.

However, the aristocrats united with the outer forces got hold of Cyprus and Sicily; then they went over Constantinopolis. Under such pressure, the public rebelled against the Emperor and lynched him. When Jerusalem was occupied by Selahattin Eyyubi in 1187, the third crusaders started off. The fourth crusaders apt to go over Anatolia captured Constantinopolis and occupied the city. Therefore the Byzantines had to fight with the Latins but were defeated and the city was destroyed.

Latins declared Baudin the Count of Flander as the first Latin Emperor of Byzance. The new Emperor kept one-fourth of the Empire and shared the rest among Venetians and other crusaders. Therefore, three-eighths of the land, the Bosphorus, and the sea belonged to Venetians. The inhabitants were kept under pressure and they seemed to accept the Latin dominance. The grandsons of Emperor Andronikos I, established the Pontus Byzantine State in Trabzon in 1204. Contemporarily, an exile government was established in Iznik (Nicaea) by Theodoros Laskaris. Koeman Turks and Bulgarians defeated Latins in Edirne (Adrianople) in 1205. Then Constantinopolis had been a colony of the Venetians until it was occupied by Michael Palaiologos VIII, the Emperor of Nicaea. That concluded the Latin dominance over Constantinopolis performing a dual policy between Venetians and Genoese.

The Empire declared Galata to be a free trade zone and Genoese were appointed to govern the zone. When Andronikos II from the Palaiologos dynasty was throned in 1282, the Empire was suffering depression in the economy and turbulence in the military. Venetians and Genoese were in limitless freedom to govern. When Catalans’ leader Roger de Flor came to capture Anatolia from the Turks but defeated in 1303, he compensated his defeat by plundering Constantinopolis. In the same period, Anatolian Seljuks’state, the capital of which was Konya, dispersed under Mongolian invasion in 1308.

Following the dispersion, there were several independent “Beylik”s in Anatolia. One of them was the “Kayi Asireti” in “Sogut” under “Osman Bey”s leadership who started the establishment of the Ottoman Empire later in 1299. Ottomans gradually transformed from a small “Beylik” to an expansive Empire and they attacked to conquer Byzance several times. However, in 1453, Byzance was conquered thoroughly by the young Ottoman Sultan, Mehmet II the Conqueror, while Byzance was under the rule of their last Emperor, Constantinos Palaiologos XI.